Dry cell



Sem. 3Q, w24. www?? 1- V. YNGVE DRY CELL Filed Nov. 14, 1925 I N VENTOR 45V@ ATTORNE Y Patented Sept. 3G, i924.

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WCTH YNGVE, OF SOUTH ORA'NGE, 'NEW JERSEY. ASSIGNOR TO MANHATTAN ELEG- TEICAL SUPPLY (JMPANY, ENC., OF NEW YORK, N. Y., A CORPORATION OF lttlf HUETTS.

DRY CELL.

Application filed November 14, 1923. Serial No. 874,610.

To @ZZ who/m n: may concern.:

Be it known that ll, VICTOR YNovn, a citizen of the United Statesresiding at South Grange, New Jersey, in the County of 5 Essex and State of New Jersey, United States of merioa, have invented certain new and useful improvements in Dry Cells,

do hereby declare that the followingy is a full, clear, and exact description of' the same.

This invention relates to dry cells and more particularly to improvements in the assembly et' dry cells.

The object of the present invention is to provide certain improvements in the type of dry cell disclosed in a eopendingi applica` tion of William F. Hendry, Serial No. 654%,- li; tiled .lilly 30, 1923, in which the depolarizing mixture isrompacted in the form of Washers or tablets with an aper- 20 ture .in the Washer through which the een- 'trally located rarhon electrode projects. @ne of the important requirements in the assembly of such cells is that the washers make goed Contact with the carbon electrode. F or this purpose` in acrordanee with the present invention. the carbon electrodo is provided with an uneven. or rorrugated surface which cooperates with correspond ingl'y corrugated openings in the Washers.

30 Due to this unevenness the surtare atwhich the washers and the Carbon electrode Contact is substantially larger and the probability ot' a good Contact.being;r established between the washers :und the carbon electrode is mate rially increased. Preferably, the o ening in the washers is made slightly smal er in diameter than the diameter of the carbon electrod insuring thus a tight fit.

The invention will be more fully understood jfrom thelollovvng detailed descrip tion and the appended'elaims.

-zine container.

The drawings illustrate au embodiment of the present invention, Fig, lheing a cross section of a dry cell and Fig. 2 a top view of one of the washers.

1, is the zine cup Within which e Hated carbon elect-rode 2 is centrally provided. said carbon electrode projecting through openings 3 provided in washers fl that are piled one on top of. the other within the .These Washers are coinpacted of some suitable depolarizi'ngmixture `and are surrounded by a cellulose container 5 preferably coated with paste. However," instead of the bag 5, the washers 4 may be surrounded by paper Coated with a snitahle iaste. The battery is lsealed hy` means ot a ayer of sand 7 and4 a. layer of pitch S.

Obviously, instead of the straight grooves. the grooves on carbon pencil 2 may be provided in a spiral or other form. n

YWhat I claim is:

l. In a dry cell, a plurality of tablets compacted o-l" depolarizing mixture, apertures through said tablets having a corrugated outline, and a corrugated carbon elec'-v frode projecting` through the apertures of said tablets. I

2. ln a' drv cell, a plurality oi tablet-s com pactod ot depolarizing mixture. apertures: in said tablets having vertical lntings', and a vertically tinted carbon througlji said apertures..

pencil proi'ectingr 3. In a dry Cells a plurality oi tablets v compacted oit dvpolarizing mixture, luted apertures through said tablets', and a correspondingly nted carbon electrode having.: a diameter larger than 'said apertures "eo` operating therewith. ln witness whereof` l hereunto'subscribe 'my name this 9th dav of November, 1923.

VICTR YNGVEr 5 

